33results about How to "Adjustable installation position" patented technology

The utility model discloses a kind of intelligent logistics cabinet wire harness fixed support of convenient installation and maintenance, it is related to logistics cabinet accessory technical field, including installation card frame, threading and arranging unit and installation fixed unit, installation fixed unit includes installation groove, telescopic link, spring, connecting plug, screwing block and gasket.The utility model has reliable installation fixed unit, by longitudinal clamping and vertical clamping, the effective installation of mechanism whole can be fixed;And by screwing screwing block, the installation state of structure can be conveniently adjusted, and it is convenient to carry out installation maintenance operation;With reliable threading and arranging unit, the four sub-blocks of the front end circumference array of wire arranging clamp are used to play the role of sub-block and clamping to cable, each branch of wire harness is led out from each side outlet of wire arranging clamp, and does not interfere or influence each other;And have reliable fixing effect to cable, guarantee the stability of line running.

The utility model belongs to vehicle manufacturing technical field, specifically disclose vehicle processing is with elevating gear, including base, the base is connected with the fixed base on the sliding, the fixed base is equipped with moving mechanism, the fixed base can pass through moving mechanism and move in first direction, mounting panel, the side that mounting panel is away from the base is equipped with the supporting plate, the supporting plate is rotatably connected with mounting panel, the supporting plate is equipped with the bracket for installing gas cylinder, and the bracket can move in the second direction of supporting plate, elevating gear, set up between base and mounting panel, elevating gear can be used for driving mounting panel and moves in third direction, first direction, second direction and third direction are perpendicular to each other. The bracket in the utility model can realize multi -shaft movement, and can realize the rotation of arbitrary angle and make the installation position of gas cylinder realize adjustable, can be applicable to a variety of vehicle models, has reduced the vehicle cost of enterprise.

This application relates to an unwinding and feeding mechanism, comprising: a base frame; a tray rotatably mounted on the base frame, on which a product strip and a separator paper strip are wound; a strip conveying assembly cooperating with the product strip unwound from the tray to guide the product strip downstream; a paper strip take-up tray connected to the separator paper strip unwound from the tray to wind the separator paper strip thereon; and a reflective photoelectric sensor including a cooperating transmitter and receiver, wherein light emitted by the transmitter is reflected from the separator paper strip between the paper strip take-up tray and the tray to the receiver. This unwinding and feeding mechanism is safe and reliable, effectively preventing the separator paper strip from scattering freely.

The present application belongs to the technical field of drilling equipment, and is especially a multi-station adjustable inner circle taking machine. The machine comprises a frame, a lifting seat installed on the frame in a lifting manner, a rotary driving assembly installed on the lifting seat and having multiple power output ends rotating synchronously, and a cutter installed on each power output end in a detachable manner. The present application switches the limiting member between the first position and the second position through the driving member in the positioning adjusting mechanism, so that the workpiece can be quickly changed between two machining positions, and the multiple synchronously rotating cylindrical cutter heads are matched to realize the processing of different groups of holes of the workpiece in batches, fully utilize the material and reduce waste. The cylindrical cutter head is internally provided with an elastic pressing rod, and the waste is pushed out immediately after being cut off, so that the discharge is smooth. The double servo screw rod lifting mechanism has high synchronous precision, and ensures the consistency of the hole depth. The whole machine has a compact structure, high multi-station synchronous machining efficiency, and the installation position of the limiting member is adjustable, which can adapt to the machining requirements of different hole spacings and has high universality.

This utility model discloses a chuck for a positioner, relating to the field of positioner technology. Its structure includes a chuck body, movable jaws, a main chuck head, a secondary chuck head, a large bevel gear planar threaded drive disc, a small bevel gear drive rod, and a dustproof end cover. A circular groove for mounting the large bevel gear planar threaded drive disc is formed in the center of the upper end face of the chuck body. The chuck body has three evenly distributed outwardly extending support arms. Guide grooves are formed on the support arms to linearly guide the movable jaws. A circular hole is formed on the chuck body for the small bevel gear drive rod to pass through. The front end of the small bevel gear drive rod drives the large bevel gear planar threaded drive disc to rotate. The large bevel gear planar threaded drive disc synchronously drives the three movable jaws to move. This utility model, through the design of an adjustable main chuck head and a subsequently installable secondary chuck head, significantly improves the clamping stability and adaptability of the chuck, meeting the needs of modern machining and welding fields for high-precision, high-stability clamping tools.

The utility model discloses an open type frame, a plurality of limit slot, its along the four peripheral edges of frame body is provided for the mobile limit of standard module, a plurality of guide rails, it sets up in the inside two sides of limit slot of frame body limit slot, is used for the movement of standard module, standard module, it includes module seat and module cover, module seat with module cover is connected through screw screw joint, and the U -shaped clamping groove that module seat with module cover forms. Through setting up the guide rail of rectangular structure in the four peripheral edges of frame body two sides, and setting up a plurality of limit slot at the four peripheral edges of frame body, to make the U -shaped clamping groove on standard module and frame body edge interlock, and then make the two lugs of inside setting of clamping groove and interlock in corresponding guide rail, and the plug -in post interlock in corresponding limit slot, thereby make standard module along guide rail moves, to make standard module along guide rail moves, adjust the installation position of accessory.

The invention discloses an ultra-deep underwater concrete pouring guide pipe with a flexible mixing device and a using method thereof.The pouring guide pipe comprises a plurality of pipe joints connected in sequence, and detachable flexible deflection baffles are arranged at the bottom end of the tail pipe joint and the connecting position of the adjacent pipe joints; the deflection baffle plate applies lateral and upward force to the concrete liquid falling from the guide pipe, so that when the concrete liquid flows through the deflection baffle plate, part of the concrete liquid deflects towards the lateral upper part in the flowing direction and then falls down; and the resultant force direction of the lateral force applied to the concrete liquid by the two vertically adjacent deflection baffles rotates by an angle alpha relative to the axis of the guide pipe. According to the construction environment, the ratio of the flexible deflection baffle to the pipe joint is determined, alpha is set, when the air resistance effect is large, the speed restraining joint is additionally installed, and the air resistance effect is further reduced. The air resistance effect can be remarkably reduced, the flowability and uniformity of concrete are improved, the aggregate separation and segregation phenomena are reduced, and the construction efficiency and quality in the ultra-deep underwater concrete pouring process are improved.

This utility model discloses a metering skid for convenient pipeline assembly, including a base with several through holes in the middle and adjustment grooves on both sides. Several adjustment blocks are arranged in the adjustment grooves, and the adjustment blocks are fixedly connected to the base via positioning units. A lifting groove is provided on the top of each adjustment block, and a lifting block is arranged within the lifting groove. A limiting unit is provided on the top of each lifting block, including a lead screw and two clamping plates. A pressing block is provided on the side of the clamping plates facing the lifting block. This metering skid for convenient pipeline assembly utilizes the sliding of the adjustment blocks within the adjustment grooves, enabling rapid adjustment of the pipeline's installation position. Furthermore, the positioning unit secures the adjustment blocks to the base, preventing displacement of the adjustment blocks and pipelines during use. The limiting unit also allows for quick fixation of the pipeline to the lifting blocks, facilitating rapid assembly and disassembly of the pipeline, improving the efficiency of metering skid retrofitting, and saving retrofitting costs.

The utility model discloses an adjustable daylighting roof glass curtain wall mounting structure which comprises a keel assembly, a plurality of connecting assemblies and a plurality of glass curtain walls. The keel assembly comprises a main keel and a transfer keel, the main keel is horizontally arranged on a building main body, and the transfer keel is arranged on the main keel; each connecting assembly comprises an upper connecting base, a lower connecting base and a fixing base. The lower connecting base is movably arranged on the transfer keel, the upper connecting base is arranged on the lower connecting base, and the fixing base is connected with the upper connecting base and the lower connecting base and used for fixing the upper connecting base to the lower connecting base; and the plurality of glass curtain walls are arranged on the upper connecting seat. According to the adjustable daylighting roof glass curtain wall installation structure, the structure is simple, assembling is convenient and fast, the construction period can be shortened, meanwhile, the installation position of the glass curtain wall is adjustable, and great popularization value is achieved.

The utility model relates to tricycle production technical field discloses a track conveying device for tricycle production, including conveying track, bearing subassembly, stabilizing subassembly, auxiliary assembly and stretch subassembly, bearing subassembly installs on conveying track upper end right side, stabilizing subassembly installs on conveying track upper end left side, auxiliary assembly installs on bearing subassembly outside, stretch subassembly installs on stabilizing subassembly upper end, the utility model has the following advantages and effect: bearing subassembly passes through the cooperation of double -end screw rod and first support column, is convenient for the interval between first support column to adjust according to the width of tricycle, improves the stability after tricycle placement, and at the same time, stabilizing subassembly passes through the cooperation of mounting block and clamping plate, is convenient for the mounting position of second support column to adjust according to the length of tricycle, adapts to the placement conveying of different size tricycle, improves conveying device application scope.

This utility model relates to an elevator traction machine with an adjustable installation position, including a traction machine body and a mounting frame, including a suspended guide frame, on which the mounting frame is slidably connected. The upper end of the mounting frame is provided with a mounting surface connected to the traction machine body. One end of the guide frame is fixedly connected to a flange, and a reducer is fixedly mounted on the outer surface of the flange. The other end of the guide frame is fixedly mounted with a hinge seat. A lead screw is provided in the guide frame between the hinge seat and the flange, and a lead screw nut seat is sleeved on the lead screw. A horizontal waist-shaped groove is opened on the side of the guide frame, and a first pin is fixedly inserted into the side of the lead screw nut seat. The cooperation between the mounting frame and the guide frame makes the installation position of the traction machine body adjustable, avoiding the phenomenon of the wire rope being too tight or too loose due to the position of the traction machine, so that the wire rope can always maintain a reasonable pretension during operation. This device is suitable for industrial production and has strong practicality.

The utility model provides a vibration test tool and a vibration test device, and relates to the technical field of vibration tests. The vibration test tool is used for assisting a vehicle frame provided with a suspension part to carry out a vibration test, and comprises at least one group of cross beam fixing assemblies and at least one group of longitudinal beam fixing assemblies. Each group of cross beam fixing assembly comprises two cross beam fixing pieces which are fixed on a cross beam of the frame; each group of longitudinal beam fixing components comprises two longitudinal beam fixing pieces which are fixed on a longitudinal beam of the frame. The vibration test tool and the vibration test device are used for improving the accuracy of the vibration test of the suspension part rack.

The utility model relates to the field of beach umbrellas, and particularly discloses a beach umbrella opening and closing handle structure which comprises a beach umbrella handle, a handle mechanism and an opening and closing mechanism, the handle mechanism comprises two handle shells, and the inner side wall of a limiting guide groove penetrates through the beach umbrella handle to be provided with positioning insertion holes in an array mode. And moving rolling wheels are installed in the positions, corresponding to the interiors of the limiting guide grooves, of the inner side walls of the two handle shells, a stop insertion rod is arranged at the position, located above the positioning insertion hole, between the two handle shells, a linkage pin is connected to the upper end of the stop insertion rod, and a pressing buckle is arranged above one end of the linkage pin. A buckling-pressing linkage pin is pressed to swing in the handle shell through an elastic rotating shaft, and after limiting of a locking insertion rod and a positioning insertion hole in the inner side of a limiting guide groove is broken, the whole handle mechanism can be controlled to roll in the limiting guide groove through moving rollers on the inner side; therefore, the installation position of the handle mechanism on the outer side of the umbrella handle of the sunshade umbrella can be quickly adjusted.

The application relates to the field of aviation partition door limiting equipment, in particular to a claw type limiting door stop for aviation, which comprises a limiting piece and a door stop; the limiting piece comprises a limiting base and a striker connected to the limiting base; the door stop comprises a mounting base, a button, a first compression spring, a sliding block, two clamping claws, two limiting blocks and two second compression springs; the sliding block slides on the mounting base, the two ends of the first compression spring are connected with the mounting base and the sliding block respectively, the two second compression springs and the two limiting blocks are located on the two sides of the sliding block respectively, the two ends of the second compression spring are connected with the mounting base and the limiting block respectively, limiting pins are formed on the limiting blocks, limiting holes for inserting the limiting pins are arranged on the sliding block, the two clamping claws are rotationally connected with the sliding block, limiting shafts are formed on the clamping claws, and the mounting base is provided with limiting grooves for embedding the limiting shafts. The application has the effect of effectively limiting and fixing the cabin partition door, so that the cabin partition door cannot be uncontrollably closed.

The utility model relates to printing equipment technical field discloses a printing equipment is with shower nozzle mounting mechanism, this printing equipment is with shower nozzle mounting mechanism, including mounting frame, the lower surface fixed mounting of mounting frame has fixed base, the below of fixed base is provided with shower nozzle, the below of fixed base is provided with adjusting mechanism, the below of fixed base is provided with promoting mechanism. This printing equipment is with shower nozzle mounting mechanism, adjust the worm to make worm wheel rotate drive locating seat and rotate, utilize the characteristic of worm wheel self -lock of worm to guarantee the stability of locating seat adjustment simultaneously, and further convenient to the position of the installation of shower nozzle is adjusted, can adjust the printing position of shower nozzle simultaneously, secondly, the shower nozzle is connected in the inside of locating seat, and the bolt will shower nozzle on locating seat and guarantee the stable installation of shower nozzle, adjust the position of shower nozzle installation convenient to the installation of shower nozzle while satisfying the position of adjusting shower nozzle and printing.

The utility model discloses a straight -down type high light efficiency cylinder spotlight, including cylinder spotlight casing, one side of cylinder spotlight casing is equipped with dynamic lighting component, one side of dynamic lighting component is equipped with hoist installation component, and cylinder spotlight installation component is installed in the inside of cylinder spotlight casing, the utility model has made improvement to prior art, in actual use, through dynamic lighting component, the traditional cylinder spotlight usually adopts fixed mounting structure, in commercial display, needs according to the display content real -time adjustment light position, direction cannot dynamic regulation, leads to illumination range to be limited, is difficult to satisfy the lighting demand of different scenes.

The utility model belongs to the field of plunger pumps, and particularly relates to a plunger pump connecting rod and plunger mechanism connecting device which comprises a base, a transmission connecting rod assembly is arranged on one side of the base and comprises a connecting base, a pump body is hinged to the top of the connecting base, and a piston rod is movably installed at the output end of the pump body. A movable arm is hinged to one end of the piston rod, a rotating shaft penetrates through and is fixedly mounted on one side of the movable arm, a mounting block penetrates through and is fixedly mounted at the other end of the rotating shaft, a plurality of mounting grooves are formed in the mounting block, and movable rods are movably mounted through the mounting grooves; a connecting seat is hinged to a pump body, a piston rod drives a movable arm to rotate around a rotating shaft, a mounting block and a movable rod are driven to do circular motion, power transmission is achieved, telescopic motion of the piston rod is converted into stable circular motion of the movable rod, meanwhile, the overall stability is improved through a limiting structure, and the problem that a traditional device is insufficient in adjusting flexibility is solved; and the adaptability in use is improved.

The utility model discloses a spacer for a soft jumper segment of a multi-split conductor cage type jumper, which belongs to the technical field of spacers and solves the problem that the position of a wire clamp of an existing spacer cannot be flexibly adjusted, the spacer comprises a main body frame, split force arms and a wire clamp main body, the outer part of the main body frame is provided with a plurality of split force arms at equal intervals, and the split force arms are connected with the wire clamp main body. A wire clamp body is arranged on the split force arm, a butt joint mechanism is installed at the end of the wire clamp body, and the butt joint mechanism comprises a side toothed plate, a connecting base and an extrusion assembly. According to the utility model, through the arrangement of the wire clamp main body and the butt joint mechanism, the position of the clamping toothed plate is adjusted by rotating the screw rod, so that the clamping toothed plate is stably meshed with the side toothed plate, and the quick installation and fixation of the wire clamp main body are realized. By changing the positions of the meshing tooth blocks, the installation height and position of the wire clamp main body can be rapidly adjusted, so that the overall use effect of the spacer is ensured.

The utility model relates to the technical field of mechanical arm material picking, and provides an anti-falling grabbing structure for mechanical arm material picking of an all-in-one machine. The main body assembly comprises a mounting disc, a mechanical arm and a mounting shell; the mechanical arm is mounted at one end of the mounting disc, and the mounting shell is fixedly connected to one end of the mechanical arm; the grabbing assembly comprises a hydraulic cylinder, a clamping rod, a connecting plate, a connecting groove and a spring shaft; the hydraulic cylinder is fixedly connected to one end of the mechanical arm, the clamping rods are rotationally connected to the two sides of the inner wall of the mounting shell, the connecting plate is fixedly connected to the connecting end of the hydraulic cylinder, the connecting grooves are formed in the front end and the rear end of the mounting shell, and the spring shafts are rotationally connected into the connecting grooves. By arranging the grabbing assembly, the hydraulic cylinder and the connecting plate are matched in an auxiliary mode, the connecting plate can be driven to slide, so that the two sets of clamping rods are driven to be opened and closed, a worker can be assisted to stably clamp materials, and the materials are prevented from falling off in the grabbing and transporting process.

The utility model belongs to the technical field of radiation monitoring, and discloses a pipeline radiation monitoring device which comprises a frame structure, the frame structure comprises a plurality of stand columns, a plurality of first connecting rods and a plurality of second connecting rods, the first connecting rods are arranged between any two adjacent stand columns in parallel at intervals, and the second connecting rods are arranged between any two adjacent stand columns in parallel at intervals. The second connecting rods are parallelly arranged between the two first connecting rods extending in the length direction of the to-be-monitored pipeline at intervals, and the length direction of the second connecting rods is parallel to the length direction of the to-be-monitored pipeline; the monitoring assembly is used for monitoring the activity concentration of gamma radionuclides in the to-be-monitored pipeline, and the monitoring assembly is detachably connected to any two adjacent first connecting rods; and / or the monitoring assembly is detachably connected to any two adjacent second connecting rods; the display assembly is used for displaying the activity concentration, monitored by the monitoring assembly, of the gamma radionuclide in the to-be-monitored pipeline, and the display assembly is detachably connected to any two adjacent connecting rods.

The fixing assembly facilitating surfboard tail fin installation comprises a bottom plate and a tail fin plate, the upper surface of the bottom plate is fixedly connected with an inserting groove base, the lower surface of the tail fin plate is fixedly connected with an inserting block, a containing groove is formed in the inserting groove base, the inserting block is connected into the containing groove in a sliding mode, and the inserting block is fixedly connected with the inserting groove base. And clamping grooves are formed in the two sides of the interior of the inserting block, sliding grooves are formed in the two sides of the interior of the inserting groove base, clamping blocks are slidably connected into the sliding grooves, and the clamping blocks are slidably connected into the clamping grooves. According to the fixing assembly facilitating installation of the surfboard tail fin, the bolt is rotated to be separated from the interior of the threaded groove, then the clamping block is slid to drive the insertion block to slide to promote the tail fin plate to move, the bolt is adjusted to the position of the corresponding threaded groove, and then the bolt is in threaded connection with the interior of the corresponding threaded groove; position adjustment of the tail fin plate and the insertion block is achieved, and a user can adjust the installation position of the tail fin plate according to needs.

The utility model provides a kind of multi-station laser radar digitization gas detection equipment: including workbench and several air-tightness detection mechanisms being set on workbench;Air-tightness detection mechanism includes air-tightness detection component, vertical pressing module and air pressure detection module;Air-tightness detection component includes detachable quick-change baseplate being connected on workbench and fixed seat, plugging module, fixed module and inflation module being connected on quick-change baseplate;Fixed seat is used to bear test product, plugging module and fixed module are respectively arranged in the both sides of fixed seat, plugging module is used to be transversely pressed in fixed module on test product, while plugging corresponding through-hole on test product;Inflation module is equipped with inflation passage, for inflating inside test product by corresponding through-hole on test product;Vertical pressing module is used to be vertically pressed in fixed seat on test product;Air pressure detection module is connected with inflation passage, for detecting the air pressure inside test product after inflation.

The utility model belongs to the technical field of logging instruments, and discloses a high-temperature direct-pushing lithologic density instrument which comprises a main body and a density probe, a containing groove matched with the density probe is formed in the main body, and a plate-shaped spring is further arranged in the containing groove. The device is characterized by also comprising a connecting arm reed and a pressing block, the connecting arm reed is S-shaped, and one end of the connecting arm reed is provided with a tooth groove and a long-strip-shaped hole. The pressing block is provided with a tooth groove and a bolt hole. According to the scheme, the problems that the attaching state of the probe and the well wall is not ideal and the well logging effect is poor due to the fact that a single supporting reed is insufficient in supporting force are effectively solved. According to the scheme, the connecting arm reed is of an S-shaped structure, the single side of the connecting arm reed is open, the connecting arm reed is fully attached to the connecting arm, and the supporting force is evenly released.

The utility model provides a kind of water wall toy, including two side plates, the front end of two side plates is connected with several support plates, the both sides of support plate are connected with the both sides of side plate by bolt respectively, the side edge bottom end of side plate is connected with bottom plate by bolt, the top of two side plates is equipped with top water basin, the bottom of two side plates is equipped with bottom water basin, several flow guides are equipped on support plate.The utility model has the beneficial effects as follows, the installation position of flow guide can be adjusted at will by setting several flow guides on several support plates, water flows down through several flow guides on support plate, forms water wall landscape, and the interestingness of toy can be improved in playing process.

The utility model relates to a portal jib crane amplitude-variable mechanism Beidou positioning detection device, include: main machine, main antenna and from antenna, main antenna and from antenna are connected through a root feeder main machine respectively, main antenna and from antenna are installed in the both sides of mounting support respectively, mounting support is installed on the protective fence of portal jib crane through the connecting support, the protective fence is set up horizontally, the protective fence and mounting support are fixed in the multiple adjustable hole positions on connecting support. The utility model has the beneficial effects that the high-precision positioning directional function of Beidou positioning main machine is utilized, in combination with the setting of double antenna of main antenna and from antenna, the positioning data of gate machine amplitude-variable mechanism can be accurately obtained, and the accuracy and reliability of positioning data are ensured, through the adjustable hole position design on the connecting support, the position and angle of main antenna and from antenna can be conveniently adjusted, and it is ensured that they are fixed in the same plane, same height.

This utility model discloses a power battery mounting bracket, comprising: a first mounting beam for mounting to a vehicle frame, the first mounting beam having a first oblong hole along the left-right direction; a second mounting beam having a second oblong hole along the front-back direction; a bracket connecting the first and second mounting beams, the bracket for mounting a power battery, one end of the bracket having a first mounting hole connected to the first oblong hole by a first bolt assembly; and a third mounting beam having a second mounting hole connected to the second oblong hole by a second bolt assembly. This power battery mounting bracket, with the first mounting beam, second mounting beam, bracket, and third mounting beam joined together, not only facilitates adjustable assembly in the middle section of the vehicle frame but also allows for power battery mounting within the vehicle frame.

The utility model discloses a kind of installation and fixing device of prefabricated brick membrane, it is related to building construction technology field.The utility model includes installation component, installation component includes two first beams respectively located upside and downside and second crossbeam between two first beams, multiple first positioning holes are opened with equal interval on the front end face of second crossbeam along length direction, and the same U-shaped plate is slidably connected on two first beams.The utility model is installed to prefabricated brick membrane by first beam and second crossbeam, and the fixed position of first beam and second crossbeam is adjusted by U-shaped plate and second threaded rod, it is convenient to install and fix prefabricated brick membrane of different length, solve the problem that current applicable range is smaller, simultaneously, installation rod is rotated relative to base by adjusting rod, and adjusting rod and base are fixed by third threaded rod, fifth threaded rod and sleeve, solve the problem that current is not convenient to adjust levelness.

This utility model discloses a multi-specification touch element size measurement device, including a frame, a feeding module for conveying incoming products to be tested mounted on the frame's worktable, a barcode reader docked with the feeding module for scanning and identifying the products to be tested, a feeding and flipping mechanism docked with the barcode reader for positioning and flipping the products, a detection platform docked with the feeding and flipping mechanism for detecting product size, an unloading and flipping mechanism docked with the detection platform, and an unloading module docked with the unloading and flipping mechanism. The worktable of the frame also has a feeding and handling module and an unloading and handling module for transporting products. An unloading mechanism is docked to the side of the unloading module. Through the above methods, this utility model can quickly position products and flip them so that the surface to be tested faces upwards, adjust the lighting effect, ensure accurate product size detection, has wide applicability, and can automatically detect and sort products.

The utility model discloses a rigid guide rail self-locking device performance detection device, which relates to the technical field of mechanical detection equipment and comprises a test frame, a rigid guide rail is arranged at the upper end of the test frame and detachably connected with the test frame, a balancing weight is arranged on one side of the rigid guide rail and slidably connected with the rigid guide rail, and the rigid guide rail is detachably connected with the test frame. A self-locking device is arranged between the rigid guide rail and the balancing weight and used for locking the balancing weight, and a releasing device is arranged at the upper end of the balancing weight and used for releasing the balancing weight from multiple dimensions. The method has the effect of improving the performance test accuracy of the self-locking device.